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Title: Crocodile Rock Post by: TightEnd on October 09, 2015, 12:24:30 PM So manty students couldn't work this out, that in Scotland they had to lower the pass mark for higher maths
blonde can do better Answers with working please. (tikay disqualified, he'll find it too easy) (http://ichef-1.bbci.co.uk/news/660/cpsprodpb/126B7/production/_85974457_croc.png) Title: Re: Crocodile Rock Post by: ripple11 on October 09, 2015, 12:54:56 PM sigh......thought this was going to be about me and Suzie having so much fun.....
Title: Re: Crocodile Rock Post by: mulhuzz on October 09, 2015, 01:12:03 PM Just so happens I did this this morning.
Will take a pic when I get back from lunch. Stupid question mind. X being defined a a constant and then as a variable. Title: Re: Crocodile Rock Post by: mulhuzz on October 09, 2015, 03:10:42 PM (http://i.imgur.com/i7yeu21.jpg)
Scruffy as hell. But there we are. Title: Re: Crocodile Rock Post by: TightEnd on October 09, 2015, 04:23:20 PM solution also on you tube
YouTube: http://www.youtube.com/watch?v=xko48OoTAQU Title: Re: Crocodile Rock Post by: HutchGF on October 09, 2015, 04:36:42 PM So manty students couldn't work this out, that in Scotland they had to lower the pass mark for higher maths blonde can do better Answers with working please. (tikay disqualified, he'll find it too easy) (http://ichef-1.bbci.co.uk/news/660/cpsprodpb/126B7/production/_85974457_croc.png) Without watching the video or Mr Mulhuzz's solution, is this essentially a stationary point question? My A' level maths seems such a long time ago looking at this. Work out the max and min and then differentiate, right? Title: Re: Crocodile Rock Post by: mulhuzz on October 09, 2015, 05:00:44 PM Yup, then set differential to 0 and Bob is uncle.
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